Last Updated on 17 March 2024

I searched the Internet for lists of the best sci-fi shows of all time. Criteria included the shows being ranked, not just listed; covering all time, not just a decade; and generally created by groups, whether teams or committees or based on general public voting (like

I was able to find 26 lists. I took the 26 lists and added all their content into a spreadsheet, noting the rank of every show. I ended up averaging the rankings each one got (there were 244 that were on at least 2 lists) and dividing that average by a factor of the number of lists that show was on. The lowest score meant a high ranking average on many lists. The complete spreadsheet is attached at the bottom.

The shows that were on the most lists (out of 26) were:

  • Battlestar Galactica (2004-2009) – 25 lists
  • Doctor Who (1963-present) – 25 lists
  • The X-Files (1993-2002, 2016-2018) – 23 lists
  • The Twilight Zone (1959-1964) – 22 lists
  • Firefly (2002-2003) – 22 lists
  • Star Trek: The Next Generation (1987-1994) – 21 lists
  • Star Trek (1966-1969) – 21 lists
  • Black Mirror (2011-present) – 19 lists
  • Stranger Things (2016-present) – 19 lists
  • Westworld (2016-present) – 19 lists

Here are links to the lists I used along with dates the lists were created: